fenv.h revision 1.1
1/* $NetBSD: fenv.h,v 1.1 2014/09/19 17:36:26 matt Exp $ */ 2 3/* 4 * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995 5 * Public domain. 6 */ 7 8#ifndef _RISCV_FENV_H_ 9#define _RISCV_FENV_H_ 10 11typedef int fenv_t; /* FPSCR */ 12typedef int fexcept_t; 13 14#define FE_INEXACT 0x00 /* Result inexact */ 15#define FE_UNDERFLOW 0x02 /* Result underflowed */ 16#define FE_OVERFLOW 0x04 /* Result overflowed */ 17#define FE_DIVBYZERO 0x08 /* divide-by-zero */ 18#define FE_INVALID 0x10 /* Result invalid */ 19 20#define FE_ALL_EXCEPT 0x1f 21 22#define FE_TONEAREST 0 /* round to nearest representable number */ 23#define FE_TOWARDZERO 1 /* round to zero (truncate) */ 24#define FE_DOWNWARD 2 /* round toward negative infinity */ 25#define FE_UPWARD 3 /* round toward positive infinity */ 26 27__BEGIN_DECLS 28 29/* Default floating-point environment */ 30extern fenv_t __fe_dfl_env; 31#define FE_DFL_ENV (&__fe_dfl_env) 32 33__END_DECLS 34 35#endif /* _RISCV_FENV_H_ */ 36